Hexose monophosphate shunt

Definition

The hexose monophosphate shunt, also known as the pentose phosphate pathway, is an alternative pathway for glucose metabolism. It generates NADPH and ribose-5-phosphate for anabolic reactions.

5 Must Know Facts For Your Next Test

1. The hexose monophosphate shunt occurs in the cytoplasm of cells.
2. It primarily produces NADPH, which is crucial for biosynthetic reactions and antioxidant defense.
3. Ribose-5-phosphate produced in this pathway is essential for nucleotide synthesis.
4. Unlike glycolysis, the hexose monophosphate shunt does not produce ATP directly.
5. This pathway consists of two phases: the oxidative phase and the non-oxidative phase.

Related terms

Glycolysis:

A metabolic pathway that breaks down glucose to pyruvate, yielding ATP and NADH.

NADPH:

A coenzyme used in anabolic reactions and antioxidant defense.

Ribose-5-phosphate: A pentose sugar produced in the hexose monophosphate shunt, essential for nucleotide synthesis.